Fallout

Set in the aftermath of a world-wide nuclear war, Fallout will challenge you to survive in an unknown and dangerous world. You will take the role of a Vault-dweller, a person who has grown up in a secluded, underground survival Vault. Circumstances arise that force you to go Outside -- to a strange world 80 years after the end of the modern civilization. A world of mutants, radiation, gangs and violence.
    Your immediate task is to find a replacement for the broken water purification controller chip. Without that chip, your fellow Vault dwellers are doomed to dehydration or be forced to leave the safety of the Vault for the Outside.

You are the Chosen One, the direct descendant of the Vault Dweller. The village elders have selected you to wear the sacred Vault-suit of your grandsire and, in time, to ascend to the leadership of your people. First you must prove your devotion to your people. Your tribe needs help.
    If you are truly the Chosen One, then you alone are capable of claiming the heritage of the Vault Dweller, to take back your birthright. Among the many wonders described in hallowed yellow pages of the Vault Dweller's Survival Guide is the Garden of Eden Creation Kit. The GECKTM is said to have the power to turn the harsh Wastes into a fruitful paradise. The Vault Dweller's Survival Manual promises the redemption of the GECKTM to all Vault Dwellers.